JAMB Biology Past Questions & Answers - Page 261

1,301.

When specimen X is mixed with few drops of iodine solution, the appearance of a blue-black colour confirms that X is

A.

galactose

B.

starch

C.

sucrose

D.

glucose

Correct answer is B

No explanation has been provided for this answer.

1,302.

The veins of the leaf are formed by the

A.

vascular bundles

B.

cambium cells

C.

palisade tissue

D.

spongy mesophyll

Correct answer is A

No explanation has been provided for this answer.

1,303.

The transportation of oxygen and carbon (IV) oxide in mammals is carried out by

A.

leucocytes

B.

thrombocytes

C.

phagocytes

D.

erythrocytes

Correct answer is D

No explanation has been provided for this answer.

1,304.

When yeast respire anaerobically, it converts simple sugar to carbon (IV) oxide and

A.

oxygen

B.

acid

C.

alcohol

D.

water

Correct answer is C

No explanation has been provided for this answer.

1,305.

The enzyme invertase will hydrolyze sucrose to give

A.

maltose and glucose

B.

glycerol and fatty acid

C.

glucose and fructose

D.

mannose and galactose

Correct answer is C

No explanation has been provided for this answer.